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Gassy Continents Balance the Carbon Budget

Degassing of CO2 from volcanoes may have played a significant role in climate change during the Earth’s long history. Credit: vadim_petrakov

Degassing of CO2 from volcanoes may have played a significant role in climate change during the Earth’s long history. Credit: vadim_petrakov

By Stephen Foley

Carbon accumulated in the Earth’s upper mantle over billions of years may be 130 times more significant in controlling the climate than previously thought.

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